https://mathweb.ru/allsystem.html?id=345647

Умножить 11101010,0011100101(2) на 1001(2) = 100000111100.00000011010000000000 Столбиком

Введите два числа и укажите их основание системы счиления:

x																1	1	1	0	1	0	1	0	.	0	0	1	1	1	0	0	1	0	1
x																				1	0	0	1	.	0	0	0	0	0	0	0	0	0	0
+																	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
																0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
															0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
														0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
													0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
												0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
											0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
										0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
									0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
								0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

							1	1	1	0	1	0	1	0	0	0	1	1	1	0	0	1	0	1
						0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
					0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
				1	1	1	0	1	0	1	0	0	0	1	1	1	0	0	1	0	1
			1	0	0	0	0	0	1	1	1	1	0	0.	0	0	0	0	0	0	1	1	0	1	0	0	0	0	0	0	0	0	0	0

Ответ: 11101010.0011100101₂ * 1001₂ = 100000111100.00000011010000000000₂